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China Reliable DC SPD for Solar Panels and Batteries Manufacturers, Suppliers, Factory

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Reliable DC SPD for Solar Panels and Batteries, Our company offers the full range from pre-sales to after-sales service, from product development to audit the use of maintenance, based on strong technical strength, superior product performance, reasonable prices and perfect service, we are going to continue to develop, to offer the high-quality products and solutions and services, and promote lasting cooperation with our customers, common development and create a better future.

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  • Plastic DC combiner box 4 in and 2 out

    Plastic DC combiner box 4 in and 2 out

    CNLonQcom has rich experience in producing Plastic DC combiner box 4 in and 2 out, you can rest assured to buy it from our factory.
    Application: Solar Power Generation System
    Maximum DC Voltage Input: 500V
    Waterproof Rating: IP65
    Product Name: Solar Combiner Box
    Material: ABS/PC
    Enclosure Material: Plastic
    Warranty: 2 years
    Brand Name: CNLonQcom
    Origin: Zhejiang, China
  • PV Switch-disconnector up to 1500V 32A

    PV Switch-disconnector up to 1500V 32A

    CNLonQcom is a professional manufacturer and supplier of PV Switch-disconnector up to 1500V 32A used in photovoltaic power distribution systems.
  • 3P DC Surge Protective Device

    3P DC Surge Protective Device

    CNLonQcom is a professional manufacturer of 3P DC Surge Protective Devices in China. The DC Surge Protective Device is designed to protect equipment from the damaging effects of DC surges on the power grid. It is mainly used in photovoltaic systems with voltages of DC500V, DC600V, DC800V, DC1000V, and DC1500V.
  • DC Molded Case Circuit Breaker LQM1-250

    DC Molded Case Circuit Breaker LQM1-250

    CNLonQcom DC Molded Case Circuit Breaker LQM1-250 MCCB 1P 2P 3P 4P for PV System Battery Disconnection Protection
    ●Rated voltage: DC250V/500V/7500V/1000V/1500V
    ●Rated current: 160A/180A/200A/225A/250A
    ●Breaking Capacity Icu: 20kA ●Poles: 1P/2P/3P/4P
    ●Shell material: Bakelite
    ●Conductor material: copper
    ●Certificate: CE, ROHS, ISO9001
  • LMC4-BD Solar connector 1000V

    LMC4-BD Solar connector 1000V

    CNLonQcom is a Chinese factory specializing in the wholesale production of LMC4-BD Solar connector 1000V. LMC4-BD solar connectors are primarily used for interconnecting solar cell strings, offering excellent electrical and mechanical performance. They are designed for voltage ratings of 1000V, with available current ratings of 30A, 45A.
  • 1000V DC Fuse Holder with Display

    1000V DC Fuse Holder with Display

    CNLonQcom 1000V DC Fuse Holder with Display for 10x38mm Fuse DC1000V 35mm DIN Rail Mount for PV System
    ●Rated voltage: DC1000V
    ●Rated current: 6/10/15/20/25/30A
    ●Fuse Size: 10x38nn ●Poles: 1P
    ●Shell material: PA
    ●Certificate: CE, ROHS, ISO9001
  • Related Blog
  • Reviews

  • Wenzhou Longqi New Energy Technology Co.,Ltd. Mid-Autumn Festival and National Day Holiday Notice

    It is worth mentioning that to meet the needs of our customers, our PV Switch-disconnectors and photovoltaic combiner boxes are well-stocked, ensuring swift deliveries and meeting various customer requirements after the holiday. We have always been committed to providing high-quality products and services to our customers and hope to continue receiving your ongoing support.

  • Wenzhou Longqi New Energy Technology Co., Ltd. Emphasizes the Crucial Role of DC Combiner Boxes in Solar Photovoltaic Systems

    As a crucial component of solar PV systems, the DC combiner box is responsible for collecting the output currents from multiple solar panels, consolidating them, and then uniformly transmitting them to the inverter. This not only simplifies the wiring but also significantly reduces the maintenance complexity and costs of the system. Additionally, these combiner boxes are equipped with circuit breakers and surge protection functions, further enhancing the safety of the system. In the event of a failure or the need for maintenance, the combiner box can quickly disconnect the connection between the solar panels and the rest of the system, protecting maintenance personnel from electric shock.

  • NLonQcom is Renovating a New Showroom to Enhance Customer Experience

    The design concept of the new showroom revolves around "intuitive experience and in-depth understanding." It will not only feature CNLonQcom's entire product line, including the market-popular photovoltaic isolator switches, combiner boxes, solar connectors, surge protectors, and circuit breakers but will also specially construct a physical version of a photovoltaic circuit diagram. Through these vivid displays, customers will be able to understand the specific uses, working principles, and critical roles of each product in photovoltaic systems directly.

  • Fuses in Solar PV Systems: Why They Matter and How to Choose the Right Ones

    Solar photovoltaic (PV) systems generate clean energy, but they also produce high DC voltages that can pose serious safety risks if not properly protected. Fuses play a critical role in preventing electrical fires, equipment damage, and system failures.

  • The Critical Role of Surge Protective Devices (SPDs) in PV Combiner Boxes: Selection Guide and Best Practices

    PV combiner boxes serve as the nervous system of solar power plants, collecting multiple DC string outputs before feeding them into inverters. These critical nodes are constantly exposed to threats from lightning strikes and electrical surges that can cripple entire PV systems. High-quality surge protective devices (SPDs) act as the first line of defense, safeguarding equipment worth hundreds of thousands of dollars.

  • Miniature Circuit Breakers: A Deep Dive into Their Evolution, Functioning, and Selection

    In the complex network of electrical systems, whether in our homes, offices, or industrial facilities, miniature circuit breakers (MCBs) are indispensable. These small devices act as silent guardians, protecting our electrical infrastructure from potential dangers.

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